Re: Problem with Solve and NSolve

*To*: mathgroup at smc.vnet.net*Subject*: [mg122466] Re: Problem with Solve and NSolve*From*: Heike Gramberg <heike.gramberg at gmail.com>*Date*: Sat, 29 Oct 2011 07:11:45 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201110280935.FAA20759@smc.vnet.net>

Solve and NSolve are used to find closed form solutions of equations. Since your equation because it is a transcendental equation which doesn't have an explicit close form solution Solve returns an error. To find numerical approximations of the solutions you can use FindRoot instead, e.g. FindRoot[x^3*Sin[x] == 1, {x, 1}] output: {x -> 1.04879} see = http://reference.wolfram.com/mathematica/tutorial/SolvingEquations.html for more information about solving equations in Mathematica. Heike. On 28 Oct 2011, at 11:35, V. Williams wrote: > I've recently tried Mathematica 8.0.1, and I've found that it's unable to compute Solve[x^3*Sin[x]==1,x] (and the same with NSolve), which gives an error: > Solve::nsmet: This system cannot be solved with the methods available to Solve > > WolframAlpha solves it without problems, so what's wrong with Mathematica? >

**References**:**Problem with Solve and NSolve***From:*"V. Williams" <gvicente@gmail.com>